Dell B2375dfw Mono Multifunction Printer - Manual (Page 43)

If connecting a FAX using an answering machine or telephone answering device (TAD):
Computer
LINE EXT
Telephone Answering Device
NOTE: Set rings to answer to digit greater than the "Using an Answering
machine" setting for the telephone answering device (TAD).
If connecting a FAX using a computer modem:
LINE EXT
Telephone Answering Device
NOTE: Set rings to answer to digit greater than the "Using an Answering
machine" setting for the telephone answering device (TAD).
NOTE: For additional information, see "Using an Answering machine" or "Using
a Computer Modem".
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